:root {
  --bg: #f3f4f7;
  --ink: #1d2430;
  --ink-soft: #5b6678;
  --ink-faint: #8a93a3;
  --line: #c9cedb;
  --accent: #3d4470;
  --accent-dark: #21253b;
  --card: #ffffff;
  --code-bg: #1c2030;
  --code-ink: #cdd6e8;
  --green-bg: #e2f3e9;
  --green-ink: #1a7a46;
  --amber-bg: #fdf0dc;
  --amber-ink: #a06a10;
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  padding: 24px 16px 60px;
}

.wrap { max-width: 1080px; margin: 0 auto; }

/* ---------- header ---------- */
header {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  border-radius: 16px;
  padding: 28px 28px 22px;
  margin-bottom: 18px;
}
header h1 { font-size: 24px; margin-bottom: 6px; }
header p { font-size: 14px; opacity: 0.85; }
header .stats { margin-top: 12px; font-size: 13px; opacity: 0.75; }
header .legend { margin-top: 12px; font-size: 12.5px; opacity: 0.95; line-height: 2; }
header nav { margin-top: 14px; }
header nav a {
  color: #fff;
  font-size: 13px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  padding: 5px 14px;
  display: inline-block;
}
header nav a:hover { background: rgba(255, 255, 255, 0.12); }

/* ---------- filter bar ---------- */
.bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
  align-items: center;
}
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}
.chip:hover { border-color: var(--accent); }
.chip.on { background: var(--accent); color: #fff; border-color: var(--accent); }

#q {
  flex: 1 1 200px;
  min-width: 160px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  outline: none;
  min-height: 36px;
}
#q:focus { border-color: var(--accent); }

/* ---------- card grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(20, 30, 50, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.stripe { height: 5px; }
.body { padding: 16px 18px 14px; flex: 1; display: flex; flex-direction: column; }
.cat { font-size: 11.5px; font-weight: 700; letter-spacing: 1px; margin-bottom: 6px; }
.card h3 { font-size: 16.5px; line-height: 1.4; margin-bottom: 6px; }
.desc { font-size: 13px; color: var(--ink-soft); margin-bottom: 10px; flex: 1; }
.meta { font-size: 12px; color: var(--ink-faint); margin-bottom: 10px; }
.meta a { color: var(--accent); text-decoration: none; }
.meta a:hover { text-decoration: underline; }

.badge {
  display: inline-block;
  border-radius: 5px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 6px;
  vertical-align: 1px;
}
.b-orig { background: var(--green-bg); color: var(--green-ink); }
.b-recon { background: var(--amber-bg); color: var(--amber-ink); }

.ptoggle {
  font-size: 12.5px;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  padding: 6px 0;
}
.ptoggle:hover { text-decoration: underline; }

.prompt {
  display: none;
  margin-top: 8px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 10px;
  padding: 12px 14px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.card.open .prompt { display: block; }

.copy {
  margin-top: 8px;
  display: none;
  border: none;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 12.5px;
  cursor: pointer;
  align-self: flex-start;
  min-height: 36px;
}
.card.open .copy { display: inline-block; }
.copy:active { transform: scale(0.97); }
.copy.done { background: var(--green-ink); }

.empty { text-align: center; color: var(--ink-faint); padding: 40px 0; font-size: 14px; display: none; }

/* ---------- admin form ---------- */
.panel {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(20, 30, 50, 0.08);
  padding: 20px;
  margin-bottom: 18px;
}
.panel h2 { font-size: 17px; margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-soft); margin-bottom: 4px; }
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  background: #fff;
}
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 110px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }

.btn {
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 14px;
  cursor: pointer;
  min-height: 40px;
  background: var(--accent);
  color: #fff;
}
.btn:hover { background: var(--accent-dark); }
.btn.ghost { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }
.btn.danger { background: #b3382f; }
.btn-row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }

.msg { margin-top: 12px; font-size: 13px; display: none; padding: 9px 14px; border-radius: 8px; }
.msg.ok { display: block; background: var(--green-bg); color: var(--green-ink); }
.msg.err { display: block; background: #fdeceb; color: #b3382f; }

/* ---------- admin list ---------- */
.admin-list { display: flex; flex-direction: column; gap: 10px; }
.admin-row {
  background: var(--card);
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(20, 30, 50, 0.08);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.admin-row .info { flex: 1; min-width: 200px; }
.admin-row .info strong { font-size: 14.5px; }
.admin-row .info small { display: block; color: var(--ink-faint); font-size: 12px; }
.admin-row .actions { display: flex; gap: 8px; }
.admin-row .actions button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 12.5px;
  cursor: pointer;
  min-height: 36px;
}
.admin-row .actions button:hover { border-color: var(--accent); color: var(--accent); }
.admin-row .actions button.del:hover { border-color: #b3382f; color: #b3382f; }

/* ---------- card actions / reports ---------- */
.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: center;
  margin-top: 2px;
}
.act {
  font-size: 12.5px;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  padding: 6px 0;
  text-decoration: none;
}
.act:hover { text-decoration: underline; }
.act.fav.on { color: var(--amber-ink); }

.tested {
  display: inline-block;
  font-size: 11px;
  color: var(--ink-soft);
  background: #eef0f5;
  border-radius: 5px;
  padding: 1px 8px;
  margin-bottom: 8px;
  align-self: flex-start;
}
.stale {
  display: inline-block;
  font-size: 11px;
  color: #a06a10;
  background: var(--amber-bg);
  border-radius: 5px;
  padding: 1px 8px;
  margin-bottom: 8px;
  margin-left: 6px;
}

.report {
  border-top: 1px solid #edeff4;
  margin-top: 8px;
  padding-top: 8px;
  font-size: 12.5px;
}
.rstats { color: var(--ink-soft); margin-right: 10px; }
.rstats strong { color: var(--green-ink); }
.report-form { margin-top: 8px; }
.report-form input,
.report-form-block input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  margin-bottom: 8px;
  outline: none;
}
.report-form input:focus,
.report-form-block input:focus { border-color: var(--accent); }
.rbtns { display: flex; gap: 8px; flex-wrap: wrap; }
.rbtns button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 12.5px;
  cursor: pointer;
  min-height: 36px;
  flex: 1;
}
.rbtns button:hover { border-color: var(--accent); color: var(--accent); }
.rbtns button[data-r="失敗"]:hover { border-color: #b3382f; color: #b3382f; }

.report-list { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.report-item {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  flex-wrap: wrap;
}
.report-item small { color: var(--ink-faint); margin-left: auto; }
.rtag { border-radius: 5px; padding: 1px 8px; font-size: 11.5px; font-weight: 600; }
.rtag-ok { background: var(--green-bg); color: var(--green-ink); }
.rtag-mid { background: var(--amber-bg); color: var(--amber-ink); }
.rtag-bad { background: #fdeceb; color: #b3382f; }

/* ---------- placeholder modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 25, 40, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}
.modal-backdrop.show { display: flex; }
.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow: auto;
}
.modal h3 { font-size: 16px; margin-bottom: 6px; }
.modal .hint { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 12px; }
.modal .field { margin-bottom: 10px; }

/* ---------- toast ---------- */
#toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent-dark);
  color: #fff;
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s;
  z-index: 200;
  max-width: calc(100vw - 32px);
  text-align: center;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- misc ---------- */
.wrap.narrow { max-width: 760px; }
.prompt.always-open { display: block; margin-bottom: 12px; max-height: 420px; }
.bar .label { font-size: 12.5px; color: var(--ink-faint); }
#sentinel { height: 1px; }
.loading-more { text-align: center; color: var(--ink-faint); font-size: 13px; padding: 16px 0; }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  body { padding: 12px 10px 48px; }
  header { padding: 20px 18px 16px; border-radius: 12px; }
  header h1 { font-size: 20px; }
  header p { font-size: 13px; }
  .grid { grid-template-columns: 1fr; }
  .bar { gap: 6px; }
  .chip { padding: 7px 13px; font-size: 13px; }
  #q { flex-basis: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn-row { flex-direction: column; }
  .admin-row .actions { width: 100%; }
  .admin-row .actions button { flex: 1; }
  .actions-row { gap: 2px 16px; }
  .modal { padding: 16px; }
  .rbtns button { min-height: 40px; }
}